Gaya APA

Gorsel, J, V. (2018). Bibliography of the geology of Indonesia and surrounding areas volume 4 IXa. Circum-Indonesia-NW IXb. Circum-Indonesia-SE (7.0 - July 2018). : Vangorselslist.

Gaya MLA

Gorsel, J.T., Van. "Bibliography of the geology of Indonesia and surrounding areas volume 4 IXa. Circum-Indonesia-NW IXb. Circum-Indonesia-SE". 7.0 - July 2018 : Vangorselslist, 2018. Textbook.